Question about LG 37LG50 37 in. LCD HDTV
I can turn on the TV but after 2 seconds it turns off. Very frustrating.
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Posted on Jan 02, 2017
Since the set is less than 1 year old, it should still be under warranty. Request warranty service.
The noise you are hearing is probably arcing inside the set on the power supply board. Continuing to attempt to turn on the set will only make things worse. Please request warranty service as this is unusual for a TV that new.
Posted on Jan 16, 2009
Unplug power cord- safety first!
check powersupply- top center right is p.s.
top left side of powersupply you'll see 5 capacitor 3300uF 10V.
see any pop up on top? replace it All with same rate or 16v is O.K.
do not use temperature rate 75c. Use 105C.
if you know how to solder. you could save $300 at least! Mahalo!
Posted on Mar 15, 2009
Be sure you have installed the stand scresw weather or not you are using the stand.
The back panel can vibrate without the screws.
Other sources of a hum are the coils on the power supply.
The power supply would have to be replaced to solve the issue.
Posted on Jan 20, 2010
SOURCE: LG TV KEEPS TURNING OFF
Kindly do not keep attempting to turn it on, as you are likely to spoil some other boards/parts/components of the TV. Look for any loose contacts in power out let, RC jack, cable and socket. In order to ensure, it is not caused by the input device, connect a DVD player
and see. Switch off TV, switch off power, remove plug and wait for 48 hours and retry.
If problem persists, I suggest it is better to refer it to a qualified service technician, since the back cover has to be opened for investigation/rectification.
Posted on Aug 23, 2012
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